Wrench.



P. S. MERRILL.

WRENCH.

APPLICATION FILED SEPT. 5, 1913.

Patented Mar. 31, 1914,

INVENTOR K rey Jfl/fi/YZZ BY 7 A T/OI'MIEYS COLUMBIA PLANOORAPB co.,WASHINGTON. D. c

UNTTED STATES PATENT @FFTQFL WRENCH.

Specification of Letters Patent.

September 5, 1913.

Patented Mar. 31, 1914:.

Serial No. 788,242.

oeaosa.

Application filed and adapted to be engaged by the worm member 9rotatably mounted in the movable aw 10 which is slidably mounted on theshank 3. This jaw 10 cooperates with the jaw 6. The end of the jaw 6disposed toward the sector t is bifurcated, forming a recess 11 which isengaged by the rounded end of the sector 4. This end of the jaw is alsoprovided with a pin 12 and is engage by a slot 13 formed in the end ofthe sector 4;. Engaging the sector t by means of a groove 14: is ahandle 15 of any suitable shape, the curvature of the groove it beingsimilar to the curvature of the sector, so that the handle can be movedon the sector as shown in lotted line,'Fig. 1. A set screw To all whomit may concern Be it known that I, PERCY S. MERRILL, a citizen of theUnited States, and a resident of Waterville, in the county of Kennebecand the State of Maine, have invented a new and Improved Wrench, ofwhich the following is a full, clear, and exact description.

The object of the invention is to provide an inexpensive, simple andstrong wrench having the features of a nut and pipe wrench, the handleof which can be adjusted to permit the use of the wrench in places wherea special wrench, that is, either a straight or a bent wrench, isrequired. obtain the above object by providing a shank having anextension in the shape of 16 is provided in the head of the handle asector, a jaw pivotally mounted on the engaging the sector so that thehandle 15 can be clamped in any desired position on the sector.

The facing surfaces of the jaws 6 and 10 are preferably indented ormilled so as to better grip the object between the jaws. The provisionof the beveled end 7 in the recess 7 of the jaw 6 permits the face ofthe jaw 6 to move toward the face of the jaw 10 when the handle 15 ispulled in the direction of the arrow shown in Fig. 1, causing the sector4: to deflect from the shank 3 about the reduced portion of the material17 which connects the shank to the sector. This defiection of the sectoris most prominent at the free end of the same, where the slot 13 isformed and which slot is so positioned with respect to the pivot 5 thatwhen it moves away from the pivot it causes the pin 12 to slide on thesides of the groove as an inclined plane, thereby causing the end of thejaw 6 provided with a milled face to move toward the milled face of thejaw 16. The movement of the end of jaw 6 toward the end of jaw 10permits the use of the wrench for nuts or pipes, or, for example, fornuts having round edges.

When the wrench is used the handle 15 is always pulled in the directionof the arrow as shown in Fig. 1, thereby there is always a tendency forthe end of the jaws 6 to move toward the end of the jaw 10, thusgripping the object engaged therebetween, this tendency being due to theflexibility of the material in the bend 17 obtained by reducing the saidportion which forms the connection between the shank and the sector. Thehandle 15 on the sector 4, by means of the set screw 16, can be adjustedand secured in any with the sector, a second jaw slidably and adjustably mounted on the shank and cooperating wit-i the first jaw, and ahandle adjustably mounted on the sector whereby the wrench ismanipulated.

The invention consists of the construction and combination of parts tobe more fully described hereinafter and fully set forth in the claims.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which like characters indicate correspondingparts in all the views and in which:

Figure 1 is a side elvation of an embodiment of my invention, the dottedline showing a different position of the adjustable jaw and also of thehandle; and Fig. 2 is an end view in the direction of the arrow 2 asshown in Fig.

Referring to shank and associated the drawings, 3 represents a shank,one end of which is extended and bent into a sector 4: lying in the sameplane with the shank, with the end of the sector lying in proximity ofthe end of the shank. Pivotally mounted on the end of the shank by meansof ferably riveted, pin 5 is a jaw 6, which jaw straddles over the endof the shank by the engagement of the said end with a central recess 7formed in the jaw and fitting snugly On said One end 7 of this recess isbeveled and therein receives a spring 8 secured in the beveled end inany suitable way with one end and having the opposite end bearing,against the smooth edge of the shank. The opposite edge of the shank isthreaded in the customary way when the wrench Y and adj ustably Iadapted to be deflected therefrom; a jaw desired portion of the sector,thereby permitting the use of the wrench in some places where it wouldrequire only a straight wrench and other places where it would re? quireonly a bent Wrench, or several wrenches.

It is understood that while the sector shown in the drawings ispreferably of rec tangular section, if it is desired the same can bemade of circular cross section or any other shape. 7

It can be seen from the drawings that is used for regular hexagonal orsquare nuts, the edges of which are not round, the handle 15 can bepulled in a direction opposite to the one indicated by the arrow in Fig.1 without in any way aflecting the relation between the shank and thesector, in view of the fact that the pin 12 abuts against the end of thegroove 13.

Having thus described my invention, I claim as new and desire to secureby Letters Patent: 1. In a wrench,a shank having a resilpivotallymounted on the end of said shank and loosely connected with one end tothe end of the sector, whereby the said second end of said jaw can movetoward said shank; a second jaw slidably and adjustably mounted on saidshank and cooperating with adjustably mounted on said sector whereby theend of the sector can be deflected from the end of the shank,substantially as and for the purpose set forth.

5. In a wrench,a shank having an extension forming a sector lying in thesame plane with the shank and the endof which is adjacent to the end ofthe shank; a jaw having a recess engaging the end of said shank; a pivotconnecting said jaw with said end of shank, said jaw having a bifurcatedend enbifurcated end, the end of said sector engaging the bifurcated endhaving a slot engaged by said pin, said slot being so formed with re'erence to said ient extension forming a sector and adapted from the endof the shank said aw is caused to be deflected from said shank; a awpivto move on the pivot with its non-bifurcated otally mounted on saidshank and movably end H10V1Il toward the shank a aw slidassociated withbly and adjustably mounted on said shank cooperating with said pivotallymounted jaw; a handle slidably mounted on said sector; and means in saidhandle whereby it can be secured at any desired point on said sector. 7

6. In a wrench,a shank having an extension, forming a sector lying inthe same plane with the shank, the end of the said sector being adjacentto the end of the shank; a jaw aving a central recess, one end of whichis beveled, said jaw end of the shank with said recess engaging saidend; a pivot connecting the jaw to the said end; a spring in saidbeveled end of the recess engaging the shank and normally forcing theend adjacent the spring away from the shank, said jaw having abifurcation at the opposite end engaging the end of the sector, said endof sector having a slot; a pin positioned in the bifurcated end of thejaw and engaging said slot; a jaw slidably mounted on said shank andcooperating with the pivotally mounted jaw; means in said j aw and onsaid shank wheresaid sector; a jaw slidably mounted on said shank andcooperating with said pivotally mounted jaw; and a handle mounted onsaid sector and having means whereby it can be secured in any positionon said sector, and whereby said sector can be deflected from saidshank, substantially as and for the purpose set forth.

2. In a wrench,a shank having a resilient extension forming a sector andadapted to be deflected from said shank; a jaw pivotally mounted on saidshank and loosely connected to said sector; a jaw slidably andadjustably mounted on said shank and cooperating with said pivotallymounted jaw; and a handle slidably and adjustably mounted on said sectorwhereby said sector can be deflected angularly from the shank,substantially as and for the purpose set forth.

3. In a wrench,a shank having a resilient extension forming a sector andadapted jaw slidably and adjustably mounted on said shank andcooperating with said ivotally mounted jaw; and a handle slidably andadjustably mounted on said sector whereby said sector can be deflectedangularly from the shank, substantially as and for the purpose setforth.

41-. In a wrench,-a shank having a resilient extension forming a sectorthe end of which is adjacent the end of the shank on said shank; ahandle engaging said sector; and means on said handle whereby the samecan be secured in any desired position on said sector, said slot in saidsector being so formed with said pivot that when said end is moved awayby said handle from the end of said shank, said pivoted jaw will move onits the non-bifurcated end moving toward the adjustably mounted jaw.

the pivotally mounted jaw; and ahandle straddling the respect to sector;a p n in said i pivot that when the H r 7. In a wrench,a shank; a sectorin the same plane with the shank; means resilsector; a jaw slidablymounted on said iently connecting one end of said shank and shank; andmeans in said pivotally mounted sector, the opposite ends of said shankand jaw normally tending to force the non-con- 15 sector being inproximity with each other; nected end of said jaw away from the adahandle adjustably mounted on said sector justable jaw.

whereby the iree end of said sector can be In testimony whereof I havesigned my moved away from the end of said shank, the name to thisspecification in the presence 0 resilient connection between the shankand two subscribing witnesses. sector normally tending to restore saidsec- PERCY SHEPHERD MERRILL.

tor to its original position; a jaw pivotally Witnesses: mounted on theend of the shank and loosely A. H. BRIDGES, connected with one end tothe end of the Mrs. A. E. HOWARD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

